What Is the Name of Dark-Coloured Mica

question 57

Multiple Choice

What is the name of dark-coloured mica?

• A)calcite
• B)biotite
• C)quartz
• D)olivine

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Definitions:

Upper Mantle

The upper mantle refers to the portion of the Earth's mantle that lies just beneath the crust, extending down to a depth of about 660 kilometers, involved in tectonic movements and convection currents.

Lower Mantle

The deeper section of the Earth’s mantle extending from 670 kilometers below the surface to the outer core, characterized by high pressure and temperature.

Continental Ice Sheets

Massive layers of ice covering large areas of continental land, primarily in polar regions, formed from accumulated snowfall.

Earth

The third planet from the Sun, characterized by its vast oceans, atmosphere, and life, supported by its unique position and geologic processes.